babb6603ef3db2a4394ad8ea40c6373245dad6604bee7481383acd003cf9f70a

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 01:33

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General

Target

GB0019.gb
Size

32KB
MD5

7d621dcbbce12b73574c42f40deec275
SHA1

ec45a932fb3fc21394fef5e27e7fe9eccd0c7f70
SHA256

cdcb6ba23ea2c32a2af47abb267d8bd065a8bc10777b435de6a9be421e5bf919
SHA512

e442cd2d9603b1beacdb546270f53388a9d2ac6a512a2c8ca2ab15184f9e56c28a768262b9998de4bd978cbd0dbe61486ccd5fc10b16894a117608db8626d29c
SSDEEP

768:S9bcy7PhYJEVMvrU4WT4QWgcfdyJ7KQKSInKA5uRt:S9Yy7KJECT24QWUKcP

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gb_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.gb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.gb\ = "gb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gb_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gb_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2668	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2668	AcroRd32.exe
2668	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 2128	1364	cmd.exe	29
PID 1364 wrote to memory of 2128	1364	cmd.exe	29
PID 1364 wrote to memory of 2128	1364	cmd.exe	29
PID 2128 wrote to memory of 2668	2128	rundll32.exe	30
PID 2128 wrote to memory of 2668	2128	rundll32.exe	30
PID 2128 wrote to memory of 2668	2128	rundll32.exe	30
PID 2128 wrote to memory of 2668	2128	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\GB0019.gb
1⤵
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\GB0019.gb
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2128
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\GB0019.gb"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
e0070cb017e546fa6ddbf2a18ff55e65

SHA1
d2bfa3a4e7498595981463b3aea853986ee92ff7

SHA256
2bac43f8606304f821e624fce77ba6dde3862fa700743d99a9cc597f4563ab7d

SHA512
cd6679bd6320dc176177828741d6623b3e1b7d1922d1e0a4da53bc985543a8568246baa03a83502dfac1dcdbe63b97a1ffd486a882ef1a7de8e89ce9a571f0b0

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